Effect of multispecies probiotics on autism symptoms: protocol for a randomized controlled trial (PROBAUT)
Year: 2025
Type: article
Study design: Study Protocol
Abstract: INTRODUCTION: Autism spectrum disorder (ASD) affects millions of children worldwide, negatively impacting the daily functioning and quality of life of patients and their families. New therapeutic approaches for ASD are being investigated. Probiotics have shown promise in modulating gut microbiota and ameliorating ASD symptoms. We aim to evaluate the impact of a 12-week multispecies probiotic supplementation on the severity of core autism symptoms in children with ASD. METHODS AND ANALYSIS: colony-forming units per dose of Bacillus subtilis W20, Bifidobacterium infantis W17, Bifidobacterium lactis W51, Lactobacillus acidophilus W37, Levilactobacillus brevis W63, Lacticaseibacillus rhamnosus W140, Lactococcus lactis W19, and Propionibacterium freudenreichii W200. The primary outcome will be the assessment of core autism symptoms using the Autism Symptom Rating Scales (ASRS). The secondary outcomes will include the quality of life, evaluations of sleep impairments, parental stress levels, gastrointestinal symptoms, and urinary p-cresol levels. These outcomes will be assessed twice: at baseline and after 12 weeks of intervention. ETHICS AND DISSEMINATION: The study has received approval from the Ethics Committee of the Medical University of Warsaw. Results will be submitted to a peer-reviewed journal and presented at national and international scientific meetings. TRIAL REGISTRATION: NCT06448767. Registered on 3 June 2024 Protocol version Version 2, 27 of October 2025.
Source: Trials
Institution: Medical University of Warsaw
Language: English
Subfield: Food Science
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $2,790
OpenAlex ID: W4417519450